Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 74B550066-101 found under Door Access Cover by General Dynamics Ots Inc. The National Stock Number assigned to this part is 1560013095157, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 74B550066-101.